Answer:
11) y = -x + 9
12) y = 4x - 16
13) y = x - 5
14) y = -2x + 4
15)y = 0.5x - 3
Explanation:
In all these equations isolate y by moving the other terms to the left side and dividing by the coefficient of x to get the slope intercept form
11)
x + y = 9
y = -x + 9 by moving x to the right side
12)
4x - y = 16
-y = -4x + 16
Multiply by -1 to get y = 4x - 16
13)
2x - 2y = 10
-2y = -2x + 10
Divide by -2 to get y = x - 5
14)
4x + 2y = 8
2y = -4x + 8
Divide by 2 to get y = -2x + 4
15)
x - 2y = 6
-2y = -x + 6
Divide by -2 to get y = x/2 - 6 = 0.5x -3